Final answer:
The problem of implementing Peer to Peer sharing includes trust and security issues, as well as scalability challenges.
Step-by-step explanation:
One of the main problems of implementing Peer to Peer sharing is trust and security. Because P2P networks rely on users to share files directly with each other, there is a risk of downloading or sharing malicious files that may contain viruses or malware. Additionally, it can be difficult to ensure that users are sharing files legally and not violating copyright laws. Another problem is scalability. P2P networks are typically more efficient and reliable in small groups where users know each other, but they become more challenging to manage as the number of users and files increases.